drm/i915: Handle HDCP2.2 downstream topology change

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When repeater notifies a downstream topology change, this patch
reauthenticate the repeater alone without disabling the hdcp
encryption. If that fails then complete reauthentication is executed.

v2:
  Rebased.
v3:
  Typo in commit msg is fixed [Uma]
v4:
  Rebased as part of patch reordering.
  Minor style fixes.
v5:
  Rebased.
v6:
  Rebased.
v7:
  Errors due to sinks are reported as DEBUG logs.

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1550338640-17470-12-git-send-email-ramalingam.c@intel.com

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This commit is contained in:

Ramalingam C 2019-02-16 23:06:58 +05:30 • committed by Daniel Vetter

parent 22ce2d948a

commit dfe4cbc26e

1 changed files with 18 additions and 2 deletions

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drivers/gpu/drm/i915/intel_hdcp.c

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